Home / 1,386,961.65-2,080,670.19-427,417.41

Finding the Fourth Proportional to 1,386,961.65, 2,080,670.19 and 427,417.41

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Solution

The fourth proportional to 1,386,961.65, 2,080,670.19 and 427,417.41 is: 641,196.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,961.65 : 2,080,670.19 = 427,417.41 : x
  2. Step 2: Convert to fraction form
    1,386,961.65/2,080,670.19 = 427,417.41/x
  3. Step 3: Cross multiply
    1,386,961.65x = 2,080,670.19 × 427,417.41
  4. Step 4: Simplify right side
    1,386,961.65x = 889,314,663,674.01
  5. Step 5: Solve for x
    x = 889,314,663,674.01/1,386,961.65
  6. Step 6: Final answer
    x = 641,196.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.